Safety-tire.



No. 756,536. PATENTED APR. 5, 1904.

A. F. SHERWOOD.

SAFETY TIRE.

APPLICATION FILED MAR. 23, 1903.

N0 MODEL.

UNTTED STATES Patented. April 5, 1904.

PATENT UFFICE.

SAFETY-TIRE.

SPECIFICATION forming part of Letters Patent No. 756,536, dated April 5, 1904.

Application filed March 23, 1903.

Be it known that I, ABSALOM F. SHERWOOD, a citizen of the United States, and a resident of Peekskill, in the county of I/Vestchester and State of New York, have invented a certain new and useful Safety-Tire, of which the following is a specification.

This invention relates to elastic-tired wheels, and has for its object means to prevent their slipping over icy or like smooth surfaces. The object is attained by the means set forth in these specifications and the accompanying drawings, in which- Figure I represents in elevation an automobile-wheel with the invention attached. Fig. II is an elevation of the face of the wheel. III section of the antislipping-tire. Fig. IV is a view of a connecting end of the antislippingtire. Fig. V represents a section of an automobilewheel, showing features of the invention on an enlarged scale. Fig.

VI is a cross-section through a wheel and the e attached device. clamping-plate.

The invention consists, as will be seen by reference to Fig. I, of a metallic tire (i, made in parts and provided with calks upon its surface, the tire to be clamped over the periphery of the rubber tire of a wheel a in a manner shown atf f. The inner surface of the tire a is adapted to fit the rubber tire c and preferably thicker in its middle part than at the ed as in IV and Vi.

The tire hown as made in two p Y but may be divided into more if nece the ends of the parts being provided with forated lugs jf' f, Fig. IV. The ends are shown united. in Figs. 1 and Iii atf by bolts /i. in the latter iigure an cl washer g is shown. The washer conic ms nshape to the ends of the tire-sections. design being to fill any space between the ends that might be occasioned by a diiference in diameters between the metallic and the rubber tires. The metallic tire may be in. one piece without jo' s for use on pneimiatic tires that maybe suiiiciently deflated to admit of their being forced over the elastic tire. i'Ylnsn so used, inflating the pncim'aitic tire will securely hold the metallic iii'ic 1:1 place. As an .dditienal Fig. VII is a plan of a Serial No. 149,221. (No model.)

means of securing the tire d, it is provided with side lugs 2', Figs. V and VI. The-ends of the lugs n are threaded and pass through a clamping-plate Z, Figs. V, VI, and VII, and by means of the nuts on any displacement of the tire d is rendered impossible.

The calks are to be adapted in size to the size of wheel and the weight of vehicle. They may be inserted in the tire by the usual means of setting calks in horseshoes, so that in case of breakage they may be replaced, or they may be riveted to the tire. In Fig. VI the calk is shown as driven into a tapering socket. More than one row of calks may be used, and a number of small ones may be employed in stead of a less number of larger ones. They might be made integral with the tire; but in that case they could not be readily hard-tempered and would soon weal-down and present smooth surfaces that would fail of their object. v

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. The combinationin a supplementary tire for soft tires. of a metallic tire in two or more sections, lugs at the ends of the sections for securing the sections together, lugs projected downward from the sides of the sections for attachment to clamps under the fellies, the sections crescent-slimmed in cross-section, removable calhs in the thick part of the sections, and soft-rubber washers between the joints of the sections.

The combination inasupplementary tire for set t tires, oi a metallic tire in two or more M at the ends of the sections for securing th .ctions together, lugs projected downward i1 cm the sides of the sections for attachment to clamps under the follies, the sections crescent-shaped in cross-section, and removable caihs in the thick part of thesestions;

Signed at Peekskill, in the county of Westchestcr and State of New York, this 14th day of li'iarch, A. D. 1905,

ABSALOM F. SHERWOOD. Wi tnesscs: 

